.nodeName{
    font-weight: bold;
    text-align: center;
    padding: 32px;
    font-size:18px;
}
.tit{
    margin-left: 32px;
    font-weight: bold;
    padding: 8px 0px;
    color: #ccc;
    border-bottom: 1px solid #e4e4d4;
}
.tit .arrow{
    color: #409EFF;
    font-size:14px;
    cursor: pointer;
    padding: 8px;
}